It is a browser extension/plug-in/add-on to check latest currency conversion rate for the given currencies. The extension has a screen where the user can input the two currencies (fromCurrency and toCurrency) and a button which when clicked the conversion rate is displayed on the screen.
API courtsey : https://free.currencyconverterapi.com/
for Firefox:
-Type ‘about:debugging’ in the address bar
-Click ‘Load Temporary Add-on’ button
-Select the ‘manifest.json’ from the file select dialog
for Chrome:
-Type ‘chrome://extensions’ in the address bar
-Check ‘developer mode’, to enable loading unpacked extension
-Click ‘Load unpacked extension’ button.
-Select the complete folder from the file select dialog.
